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diff --git a/src/Common/Backends/SystemBackendPosix.h b/src/Common/Backends/SystemBackendPosix.h
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+++ b/src/Common/Backends/SystemBackendPosix.h
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+/*
+ * SystemBackendPosix.h
+ *
+ * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MAD_COMMON_BACKENDS_SYSTEMBACKENDPOSIX_H_
+#define MAD_COMMON_BACKENDS_SYSTEMBACKENDPOSIX_H_
+
+#include "../SystemBackend.h"
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include <sys/types.h>
+#include <sigc++/signal.h>
+
+namespace Mad {
+namespace Common {
+namespace Backends {
+
+class SystemBackendPosix {
+  private:
+    static SystemBackendPosix backend;
+    static std::map<pid_t, sigc::slot<void, int> > processes;
+
+    static void setChildHandler();
+
+    static void childHandler(int);
+
+    SystemBackendPosix() {
+      setChildHandler();
+    }
+
+  public:
+    ~SystemBackendPosix();
+
+    static bool exec(sigc::slot<void, int> resultHandler, const std::string &filename, const std::vector<std::string> &argv = std::vector<std::string>(),
+        const std::vector<std::string> &env = std::vector<std::string>());
+};
+
+}
+}
+}
+
+#endif /* MAD_COMMON_BACKENDS_SYSTEMBACKENDPOSIX_H_ */